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  3. 3 consider the function f cc defined by fz 2...

Question: 3 consider the function f cc defined by fz 2...

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3. Consider the function f CC defined by f(z )2 +5z -2. Let r and y be the real and imaginary parts of z so that z-x+iy. Determine the functions u R2 R and v: IR2R such that f(z)-f( and v satisfies the Cauchy-Riemann equations (x + iy) - u(x,y) + iv(x, y). After doing this, prove that u 4. Prove that the function f CC defined by f(z)2 Z is not analytic.
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